JB-Props wrote:
Would you call the hoes diamonds or circles?
The mouth is a mesh, and the wires of the mesh form "diamond" shapes that align in the holes.
I'll try to take a photo of the grill mesh I have. There is debate, of course, as to whether this was even used. The only occurrence of this "holey metal" that I've seen is this TIE fighter scene specifically.
It has been argued that regular standard diamond-grid mesh was used in the chin vent, and that light entering the eyes or mouth would illuminate the intersections and corners of the diamonds thereby creating this polka-dot effect. However, if you look carefully at pictures where this does happen, the dots on diamond meshes look like curved rectangles, not circles.
This is just a screen cap of the TIE fighter scene, and the dots look unmistakably round. Also, notice that the camera is looking upwards at Vader, and notice the upwards lighting onto the neck and illuminating the eyebrows. That tells me there is much more going on than mere illumination onto the intersecting corners of diamond mesh, because the upwards lighting on the chin would have illuminated the chin triangle material and would have revealed the diamond mesh pattern if one had ever been used.
No, I do think a "holey metal" and not a diamond-grid mesh was used in this particular scene -- upward illumination would have caused you to see the color of Prowse's face. I think this "holey metal" was used to obscure Prowse's face.
JB, sorry it took so long for me to respond to this. I somehow overlooked your initial question.